Web Intents / Web Activities are a concept where web apps can delegate tasks, like sharing or selecting an image, to 3rd parties apps.

OI WebIntents Android showcases how to launch a web app via an intent. It uses the webintents-helper.jar library. Please see https://github.com/openintents/webintents-agent for the source code.This application is the result of Cheng Zheng's work during Google Summer of Code 2012.